We have some pre-WDW traditions:
DD accuses us of being Disney-psychos as we can happily tell you where we'll be eating lunch on any given day...even if the trip is a year away. So, our tradition is to ask her years, months, weeks in advance, "What are you wearing on the plane?" to which she always replies, "Nothing" Asking what she is going to wear to any given park receives the same response.
We tend to pretend that the train at the Orlando airport is ushering us into a pleasure planet - rather than just a tourist location. There's just something about that train...
We buy a new "Unofficial Guide" every year - even if we know we aren't going.
We definately listen to Disney CD's to get into the right mental groove.
And we tend to see "Hidden Mickeys" in the spots on our bananas or the browned parts of our biscuits.